| 核电站仪控开关触点接触失效分析 |
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| 引用本文： | 石颉,姚建林,王永年,施海宁,涂丰盛.核电站仪控开关触点接触失效分析[J].低压电器,2009(9):57-60. |
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| 作者姓名： | 石颉 姚建林 王永年 施海宁 涂丰盛 |
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| 作者单位： | 1. 苏州热工研究院有限公司,江苏,苏州,215004
2. 大亚湾核电运营管理有限公司,广东,深圳,518124 |
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| 摘 要： | 进行了核电站仪控开关触点接触失效分析。应用NIUSB-6211型多功能DAQ模块、辅助电路和LabView软件，研制了能自动跟踪接触电阻随电流增大的变化趋势的测量装置。该测量装置配合电子扫面显微镜和X射线能谱分析，可观察触点表面的形貌以及分析微区成分，从而确定仪控开关接触系统失效的机理。
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| 关 键 词： | 接触电阻 失效分析 数据采集 |
Analysis on Contact Failure of Instrument and Control Switch in Nuclear Power Plant |
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| SHI Jie,YAO Jianlin,WANG Yongnian,SHI Haining,TU Fengsheng.Analysis on Contact Failure of Instrument and Control Switch in Nuclear Power Plant[J].Low Voltage Apparatus,2009(9):57-60. |
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| Authors: | SHI Jie YAO Jianlin WANG Yongnian SHI Haining TU Fengsheng |
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| Affiliation: | 1.Suzhou Nuclear Power Institute Co.;Ltd.;Suzhou 215004;China;2.Daya Bay Nuclear Power Operation and Management Co.;Shenzhen 518124;China |
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| Abstract: | The contact failure of instrument & control switch in nuclear power plant was analyzed.A measure device which can automatically trace variable trend of contact resistance to cUrrent increase was developed by NI USB-6211 DAQ module,assistanT circuits and LabVIEW software.The scanning electron microscopy(SEM) and X-ray energy dispersive analysis system were used to observe the microcosmic appearance and analyze the component of contact,so the contact failure reasons was confirmed. |
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| Keywords: | contact resistance failure analysis data acquisition （DAQ） |
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